expect (v.)

1550s, "wait, defer action," from Latin expectare/exspectare "await, look out for; desire, hope, long for, anticipate; look for with anticipation," from ex- "thoroughly" (see ex-) + spectare "to look," frequentative of specere "to look at" (from PIE root *spek- "to observe").

The figurative sense of "anticipate, look forward to" developed in Latin and is attested in English from c. 1600. Also from c. 1600 as "regard as about to happen." Meaning "count upon (to do something), trust or rely on" is from 1630s. Used since 1817 as a euphemism for "be pregnant." In the sense "suppose, reckon, suspect," it is attested from 1640s but was regarded as a New England provincialism. Related: Expected; expecting.

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Definitions of expect from WordNet

expect (v.)
regard something as probable or likely;
The meteorologists are expecting rain for tomorrow
Synonyms: anticipate
expect (v.)
consider obligatory; request and expect;
I expect my students to arrive in time for their lessons
Synonyms: ask / require
expect (v.)
look forward to the probable occurrence of;
We were expecting a visit from our relatives
Synonyms: look / await / wait
expect (v.)
consider reasonable or due;
I'm expecting a full explanation as to why these files were destroyed
expect (v.)
look forward to the birth of a child;
She is expecting in March
expect (v.)
be pregnant with;
The are expecting another child in January
Synonyms: have a bun in the oven / bear / carry / gestate